Question: Implement a simple linear regression model from scratch using Python. Assume you have a dataset containing two columns: one for independent variable (X) and another for dependent variable (Y). Your task is to write a Python class that trains a linear regression model using gradient descent optimization.

Question: Implement a simple linear regression model from scratch using Python. Assume you have a dataset containing two columns: one for independent variable (X) and another for dependent variable (Y). Your task is to write a Python class that trains a linear regression model using gradient descent optimization.